Explain the following excerpt from the book "Night" in one to two sentences. "Why do you cry when you pray?" he asked, as though he knew me well. "I don't know," I answered, troubled. I had never asked myself that question. I cried because something inside me felt the need to cry. That was all I knew. "Why do you pray?" he asked after a moment. Why did I pray? Strange question. Why did I live? Why did I breathe? "I don't know," I told him, even more troubled and ill at ease. "I don't know."